Electricity: circuit makers and breakers – Special application – Change of inclination or of rate of motion responsive
Reexamination Certificate
2011-08-16
2011-08-16
Friedhofer, Michael A (Department: 2833)
Electricity: circuit makers and breakers
Special application
Change of inclination or of rate of motion responsive
C073S514160
Reexamination Certificate
active
07999201
ABSTRACT:
A Micro Electro Mechanical Systems (MEMS) G-switch includes one or more actuators formed between fixed driving stages and moveable driving stages. A proof mass is attached to the moveable driving stages and flexibly attached to a substrate through one or more spring members. A voltage control circuit applies working voltages to the driving stages. With a first working voltage applied between the moveable and the fixed driving stages, moving of the driving stages' sensing direction towards gravity at a first critical angle will cause moveable driving stages to collapse and touch the fixed driving stage on the substrate and thus turn on the MEMS G-switch. After turning on the G-switch, a second working voltage is applied and moving of the driving stages' sensing direction away from gravity at a second critical angle will cause moveable electrodes to deviate from the fixed electrodes and thus turn off the MEMS G-switch.
REFERENCES:
patent: 5177331 (1993-01-01), Rich et al.
patent: 5211051 (1993-05-01), Kaiser et al.
patent: 5353641 (1994-10-01), Tang
patent: 6035694 (2000-03-01), Dupuie et al.
patent: 6230564 (2001-05-01), Matsunaga et al.
patent: 6236005 (2001-05-01), Kvisteroey et al.
patent: 6327909 (2001-12-01), Hung et al.
patent: 6550330 (2003-04-01), Waters et al.
patent: 6765160 (2004-07-01), Robinson
patent: 6964195 (2005-11-01), Hobbs et al.
patent: 7284432 (2007-10-01), Tay et al.
patent: 7312553 (2007-12-01), Laermer
patent: 7316186 (2008-01-01), Robinson et al.
patent: 7355318 (2008-04-01), Dean et al.
patent: 2003/0140699 (2003-07-01), Pike et al.
patent: 2005/0253710 (2005-11-01), Eskildsen
patent: 2006/0161211 (2006-07-01), Thompson et al.
Cao Xin Ping
Zhe Wang
Ackerman Stephen B.
Friedhofer Michael A
Pike Rosemary L. S.
Saile Ackerman LLC
Shandong Gettop Acoustic Co. Ltd.
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